(2'-Cyano-4'-alkylphenyl)-3-cyano-4-alkoxybenzoates and liquid c

(2'-Cyano-4'-n-alkyl)phenyl-3-chloro-4-n-alkoxy benzoates and li

.alpha.-hydroxyketone derivatives, liquid crystal compositions c

.alpha.-substituted-propionic acid esters

1, 3-dioxanes, and liquid-crystalline medium

1,2,2,2-tetrafluoroethyl ethers, and liquid-crystalline medium

1,2-propanediol derivative

1,3-dioxane derivative and liquid crystal compositions containin

1,3-dioxane derivatives having axial fluorine substitution

1,3-dioxane derivatives, and liquid-crystalline medium

1,3-dioxane derivatives, methods of preparation and liquid cryst

1,4-dipyrimidinylbenzene derivative

1,4-substituted dihydrobenzene derivatives

1,8-Difluorisoquinoline derivatives and the use thereof in liqui

1-(4-alkylphenylethynyl)-4-(alkylphenylethynyl)-benzene

1-Fluoro-6,7-dihydro-5H-isoquinolin-8-one derivatives and the us

1-fluorocyclohexene-difluorophenyl derivatives

1-fluoroisoquinoline derivatives and the use thereof in liquid c

1-Phenyl-1-propanol derivative

2,2'-difluoro-4-alkoxy-4'-hydroxydiphenyls and their derivatives